The new rock format began in the fall of 1967.
The station changed from a rock format in the spring of 2007.
The move to a top-40 rock format in March 1967 was an enormous success.
The entire staff from the rock format remained at the station.
In the early 1970s, it was playing a progressive rock format.
On March 1, 2010, the station returned to a classic rock format.
By 2007, the station adopted its current active rock format.
During the late 1970s, the station featured a soft rock format.
Then, 97.7 was flipped again to feature a rock format.
Despite competition, it maintained a rock format for over twenty years.